Lifestyle Home WATCH: 'RHONY'' s Luann D'Agostino's New Hamptons Home Has One 'Spectacular' Thing Her Old $9.45 Million Mansion Lacked The reality star gives a tour of her stunning Sag Harbor retreat By Mackenzie Schmidt Mackenzie Schmidt Mackenzie Schmidt is the Home and Travel Editor for PEOPLE. She's worked at PEOPLE for over five years as a writer and editor on the Lifestyle team. People Editorial Guidelines Published on August 2, 2017 09:54 AM Share Tweet Pin Email Luann D'Agostino knows how to summer. The Real Housewives of New York star, 52, steps in as guest host of real estate junkie series Open House this weekend, but before she could introduce the beautiful beach homes of other notable design folks, the countess couldn't help but share her own new place in the village of Sag Harbor. Bethenny Frankel Enjoys "Peace and Freedom" in Her Bridgehampton, New York, Getaway FROM PEN: Dorinda Medley Explains Why Luann de Lesseps and Tom D'Agostino are a Perfect Couple Back in 2014, she gave a tour of her $9.45 million Bridgehampton home, which was originally a barn that the RHONY star had transported to Long Island from Pennsylvania. Though the estate clocked in at an impressive 6,500 square feet, its farmland lot lacked one thing her new pad has plenty of: water views. "The crown jewel is this spectacular dock," she notes of the 19th-century Greek Revival house. "It offers magnificent views of Sag Harbor Cove and is the perfect place to take in Hamptons sunsets." Real Housewives of New York's Luann D'Agostino Gives a Tour of Her Penthouse, Complete with a 'Fabulous Terrace' To see the full tour of her home, check out the video above, and for many more jaw-dropping East End retreats, tune in to Open House Sunday, August 6 at 9AM on NBC4NY.